Am 01.03.2018 um 18:31 schrieb Stefano Troncaro:
...
@Urs, I not familiar with \with blocks, I'll take a look at the
oll-core code and experiment a bit with it. Maybe I'll be able to help.
Look at
https://github.com/openlilylib/scholarly/blob/master/usage-examples/annotate.ly
to see an example for the syntax.
Actually this does what you want: an unlimited number of optional
arguments.
%%%
\version "2.19.80"
\include "oll-core/package.ily"
myVariableFunc =
#(define-void-function (opts mus)((ly:context-mod? #f) ly:music?)
(let ((props
(if opts
(context-mod->props opts)
'())))
(for-each (lambda (prop)
(ly:message "Option '~a': '~a'" (car prop) (cdr prop)))
props)
mus))
\relative {
c' d e f
\myVariableFunc \with {
first = "Hello"
second = 124
third = #'((a . red)(b . blue))
fourth = #(ly:version)
fifth = #display
} g1
}
%%%
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